The uWell Crown Mini is all you need in a bite sized tank! This tank all the same features as the original uWell Crown Tank with a top fill design and still uses the Crown Dual Coils.This tank does feature a small but wide bore stainless steel mouthpiece. Made with stainless steel construct and quartz glass. In the box you receive an extra glass and three replaceable coils,two Dual Coils(0.25 & 0.5 ohms) and a Ni200(0.15 ohms) so you can customize your vaping experience.